Where do you buy DOGE?

Excuse me, could you please elaborate on the process of acquiring DOGE, the cryptocurrency? I'm curious to know where exactly one would go to purchase it. Are there specific platforms or exchanges that specialize in trading DOGE? Also, could you provide any insights into the necessary steps one should take to ensure a SAFE and secure transaction when buying DOGE? It would be greatly appreciated if you could share your expertise on this matter.